“1st day training kicks,” Paul tweeted. “Doubted every step of the way.. but kick down the doors of the doubters.”

The PFL saw Paul's message and offered a response.

In the message, the social media influencer turned boxer tagged Bellator and PFL. Mentioning those promotions and not the UFC is a nudge towards the MMA leader due to Paul's rivalry with UFC president Dana White. 

Recently, Paul took to Twitter with a wager that said he'd retire from boxing if the UFC increased fighter compensation and White gave him a fight inside the Octagon. White didn't meet the deadline of Paul's offer.  Paul went 3-0 inside the ring in 2021. He knocked out Ben Askren in April, won a split-decision over Tyron Woodley in August, and then last month, he knocked out Woodley in the sixth round. It is unknown when Paul will make his 2022 debut.